Key holder



FIG. 1 is a top plan view of a key holder showing my new design;

FIG. 2 is a front elevational view of the key holder;

FIG. 3 is a left-side elevational view of the key holder;

FIG. 4 is a right-side elevational view of the key holder;

FIG. 5 is a bottom plan view of the key holder;

FIG. 6 is a rear elevational view of the key holder;

FIG. 7 is a front elevational view of the key holder in the open position, the dotted line showing of environmental structure being for illustrative purposes only and not a part of the claimed design; and

FIG. 8 is a front elevational view of the key holder in which the top portion of the key holder is separated from the bottom portion of the key holder. 

The ornamental design for a key holder, as shown and described. 